O'Malley, J. W. (1958). Challenge. Loyola University Press.
Chicago Style (17th ed.) CitationO'Malley, John W. Challenge. Chicago: Loyola University Press, 1958.
Cita MLAO'Malley, John W. Challenge. Loyola University Press, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.